We did two tests tonight at the Gorilla83 meet. Mixed results on one test and definitive results on the other.
We had three Submersive HPS. One F2 HP, two traditional dual opposed Submersive HPs.
Here was the uneq'ed frequency response in Gorilla83's room as we listened to the three submersives. FR captured 10x's and averaged at MLP.
For the Tracks we used the most recent Incredible Hulk cop car smash scene and a snippet of the Bass I love you clip. We played both clips back to back with a minidsp engaging a HPF at 18hz, and then with the HPF removed. Then we blind tested the two tracks again and had people vote on which A / B replay had deeper bass.
On the incredible Hulk Scene 12 out of 14 people voted correctly in blind voting done by show of hands with eyes closed.
On the Bassotronics - Bass I Love You track (which contained 15 and 7hz content) - nobody could tell and we didn't even blind vote because nobody knew and everyone admitted so before the voting.
I hold a ported sub preference -- generally, and I could tell pretty clearly (and was right) from my seating position which A/B had deeper content on the Hulk footsteps and cop car smash scene because my pant legs shook a bit more and my body seemed to feel a bit more tactile feedback. I voted correctly.
However, On the Bass I Love You Track I couldn't have determined the difference if my life depended on it from that A/B demo.
Interesting to be sure. 12 of 14 indicates that at least on at least some demo clips people can definately tell the difference. We will do additional testing at the Omaha Home Theater tour happening next weekend in at least two theaters --- HuskerOmaha's with four UXL18 drivers, and Desertdome with eight 15" drivers in an infinite baffle setup.Edited by Archaea - 10/20/12 at 7:50pm